Stamicarbon B.v.

Lambertus J Vande Leemput

Joseph J Scholten

A process is provided for the preparation of an improved porous silicon dioxide catalyst support, wherein a silicon dioxide prepared by flame hydrolysis is converted into an aqueous gel and thereafter admixed with at least 15 vol. % of a C.sub.1 to C.sub.5 alkanol, followed by spray-drying of the resulting aqueous/alcohol silica gel. The resulting catalyst support is particularly useful with chromium oxide catalysts for polyalkene polymerizations.

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Echt, Netherlands

Lambertus J Vande Leemput